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F. C. DELI ET AL March 8, 1932.

PENCIL Filed Aug. 25, 1930 km mw QN MN MW n1 Val/Ill!!! fax/6752270;

. QN QM Q W HW Patented Mar. 8, 1932 warren stares PAT NT caries FRANK c. DELI AND WILLIAM F. FOTH, or C ICAGO, ILLINoIs, ssIeNoas T Auro- POINT COMPANY, or orIIcaeo, ILLINOIS, A CORPORATION or ILLINOIS PENCIL Application filed August 25, 1930. Serial No. 477,625.

Our invention relates to pencils and more particularly to mechanical pencils.

' In the construction of the common form of mechanical pencils, great trouble has been experienced in providing a simple, ineXpensive and readily manufactured tip therefor. In many instances the tips are composed of a number of parts, in some cases machined parts are used, thus making the cost thereof relatively great.

An ob ect of our invention 18 to provide in a mechanical pencil of common construction, a tip composed of three interfitting parts conveniently joined by one operation.

In a well known form of pencil tip now offered to the trade, the lead tube or guide is inserted in the tapered metal tip and a lead or solder washer inserted over the lead guide and into the tip to insure the positioning thereof. Thereafter a plurality of tips so formed are subjected to heat which serves to melt the lead washer in the tip thus uniting the lead tube and the tapered tip.

An object of this invention is to eliminate the various steps attendant upon the joining of the lead tube to the tapered tip, in a single operation.

Our invention will be more readily understood by reference tothe accompanying drawings:

Fig. 1 is partial longitudinal sectional view of a pencil constructed according to our invention.

' Fig. 2 is a cross sectional view taken on the lines 22 of Fig. 1, and

Fig. 3 is a partial longitudinal sectional view through a pencil carrying a modified form of tip.

By reference to the drawings and particularly Fig. 1, it will be seen that our invention comprises a barrel 10, having an axial opening 11, a cap 12, an eraser 13, a. reduced end portion 14, having the shoulder 15 formed thereon, and a tip. The tip comprises the lead tube or guide 16, the lower end of which is preferably split to provide for expansion when a lead is forced there through, the upper portion of the tube 16 being adapted to be received within the axial opening 11 in the barrel and carrying for co-operation therewith the-plunger 17 for the purpose of forcing a lead (not shown) there through, and the tapered metal tip member 18, the lower end of which is adapted to tightly contact the wall of the tube 16 and the upper end .of which is adapted to interfit with the reduced portion 14 of the barrel and to contact the shoulder 15 thereon.

The tip and tapered metallic member are joined by means of a metal disc 19, which is inserted over the end of the tube 16 into contact with the wall of the member 18. A slight pressure being applied thereto serves to tightly imbed the same in the metal of the tube as shown at 20. Thereafter, by a suitable die operating from the upper open end of the member 18 a portion of the metal 21 in the side wall thereof is displaced downwardly into contact with the disc 19 thus securely binding the same and preventing the separation of the parts from each other.

The pencil construction shown in Fig. 3 is identical with that of 1 with the exception that the lead tube 22 does not extend beyond the tip member 23, but abuts said member at the point 2 and the lead carried by the tube passes through the slit opening 25 in the lower end of the tapered member 23. The disc 26 is retained in place by displacing the metal 27 in the wall of the tapered member 23.

If desired we provide a knurl at the lower endof the member 18 where it contacts the tube '16 to avoid the sight of the oint and to provide a more workmanlike job.

Thus it is readily seen that we provide a tip construction for mechanical pencils which is of the utmost simplicity and economy of manufacture. f desired, by a single operation, the disc may be forced down into position'and the metal in the tip wall displaced against the disc, thus forming the entire tip.

Modifications and variations may be made in the construction herein'disclosed, and we do not wish to be limited except as indicated 5 ing therein and a reduced end portion, and a I tip co -operating therewith, said tip comprising a tapered, metallic body adapted to overlie the reduced. portion of said barrel, a lead tube centrally disposed within said body portion, a washer within said body'portlon andsecured to said lead tube for centering and holding the latter, and mechanicalmeans for securing said washer to said body portion, said means comprising lugs displaced from the wall of said body portion above said washer. Y

2. A pencil construction comprising, in

combination a barrel having an axial opening therein and a reduced end portion, and a a tip cooperating therewith, said tip comprising a tapered metallic body adapted to overlie the reduced portion of said barrel, a lead tube centrallydisposed within said body portion,

the lower extremity thereof engaging the wall of, said tip within the limits of said tip, a washer within said' body portion. and secured to said lead tube for centering and holding the'latter, and mechanical means I for securing said washer to said body portion, said means comprising lugs displaced from the wall of said body portion above. said washer. 4

3. A mechanical pencil of the class described, comprising in combination a pencil barrel having an axial opening therein and a reduced end portionand a tip, said tip comprising a tapered metallic open-ended c body'portion, a lead tube having a split end which projects through and extends beyond the lower open end of said body portion, a washer within said body'portion and secured to said lead tubelfor centering and holding V the latter, and, mechanical IHJGELIISTTEOI securing said washer to said body portion,said

r means comprising'glugs displaced from the Wall of said body portion above said washer.

4. Avpencil construction"comprising, in combination a barrel having an axial opening therein'and a reduced end' portion, and

a tip cooperating therewith, said tip'come prising a tapered metallic body adapted. to overlie the reduced portion of said barrel, a lead tube centrally disposed within said body portion,;the lower extremity thereof engaging the wall of said tip within the. limitsof said tip, a lead plunger within said tubeand engaging the walls of the opening within said barrel, a washer withinsaid body portion 1 V and secured to said lead tube for centering and holding the latter, and mechanical means for securing said washer to said body portion, sald means comprlsing lugs displaced from the wall of said body portion above said washer.

In testimony whereof we have aflixecl our signatures.

FRANK C. DELI. i I WILLIAM F. FOTI-I. 

